Functional T cells targeting tumor-associated antigens are predictive for recurrence-free survival of patients with radically operated non-small cell lung cancer

Safi, Seyer and Yamauchi, Yoshikane and Rathinasamy, Anchana and Stamova, Slava and Eichhorn, Martin and Warth, Arne and Rauch, Geraldine and Dienemann, Hendrik and Hoffmann, Hans and Beckhove, Philipp (2017) Functional T cells targeting tumor-associated antigens are predictive for recurrence-free survival of patients with radically operated non-small cell lung cancer. ONCOIMMUNOLOGY, 6 (11): e1360458. ISSN 2162-402X,

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Abstract

In this prospective study, we examined postoperative follow-up and preoperative IFN-gamma T cell responses against 14 non-small cell lung cancer (NSCLC)-associated antigens in the blood of 51 patients with NSCLC, 7 patients with benign pulmonary tumors, and 10 tumor-free patients by enzyme-linked immunospot assay. The phenotype and function of T cells specific for tumor-associated antigens (TAAs) in the blood or tumor tissue of 9 NSCLC patients were characterized in detail using TNF-alpha, IL-2, and IFN-gamma cytokine capture assays. We found that circulating TAA-specific T cells were significantly enriched in NSCLC compared with tumor-free patients. The most frequently recognized TAAs were Aurora kinase A, HER2/neu, NY-ESO-1, and p53. TNF-alpha was the most abundant cytokine secreted by TAA-specific T cells in the blood as well as by in situ-activated tumor-infiltrating lymphocytes, most of which were effector memory cells. The absence of TAA-reactive T cells identified patients at higher risk of tumor recurrence, irrespective of tumor stage (OR = 8.76, 95% CI: 1.57-34.79, p = 0.008). We conclude that pre-existing TAA-reactive circulating T cells are a strong independent prognostic factor for recurrence-free survival. These data may help discriminating high-risk from lowrisk patients, improving prognostication, and redirecting adjuvant therapy. Our findings suggest the therapeutic relevance of Aurora kinase A, HER2/neu, NY-ESO-1, and p53 as targets for immunotherapy.

Item Type: Article
Uncontrolled Keywords: METASTASIZED BREAST-CANCER; BONE-MARROW; IMMUNE-RESPONSE; FOLLOW-UP; VACCINE; IMMUNOTHERAPY; GUIDELINES; PROGNOSIS; THERAPY; SUBSETS; Immunotherapy; non-small cell lung cancer; survival; memory T cells; tumor-associated antigens
Subjects: 600 Technology > 610 Medical sciences Medicine
Divisions: Medicine > Regensburger Centrum für Interventionelle Immunologie (RCI)
Depositing User: Dr. Gernot Deinzer
Date Deposited: 14 Dec 2018 13:01
Last Modified: 20 Feb 2019 14:49
URI: https://pred.uni-regensburg.de/id/eprint/634

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